<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 引入样式 -->
    
    <link
    rel="stylesheet"
    href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/4.1.1/animate.min.css"
  />
   

   <!-- 引入交互 -->

</head>
<body>
    <div class="app-index dpflex fdcolumn">
        <div class="top">
            源码健身
        </div>
        <div class="bottom flex1">
            <div class="popup">
                
                    <span id="seconds">5s</span>
                
                    <span id="skip">跳过</span>
            </div>
            <div class="anima animate__animated animate__bounceInDown">
                HOLD ON
            </div>
        </div>
    </div>
</body>
</html>